Derived from osg::Node and is a replacement for the osgSim::LightPointNode represents a group of light points that share a common origin location. More...

Inheritance diagram for makVrv::DtLightPointNode:

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Classes
struct	LightPointInfo
	structure for holding all the information required to describe a single light point. More...

Public Member Functions
	DtLightPointNode ()
	Default contructor.
	DtLightPointNode (const DtLightPointNode &lpn, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_Node (vrvOsg, DtLightPointNode)
virtual void	traverse (osg::NodeVisitor &nv)
	Traverse function which if called by the cull visitor then it sets up the Light Points to be drawn.
virtual void	updateDrawable (const osg::Camera camera, int frameNum, double simTime, osg::Matrixf &modelViewMatrix, osgUtil::CullVisitor cv, int groupId, bool shouldCull, float maxVisibleDistance, float posScale, float radiusScale, bool isInstancedReflection=false)
	Makes sure the drawable has enough instances and light points for this node and passes model view matrix to the Light Point Manager posScale is used to scale the position of the light point when model scaling is being used with instanced models radiusScale is used to scale the radius of the light point when model scaling is being used with any model.
virtual void	addTypedLightPoint (const osg::Vec3d &pos, int type, std::string id, const osg::Vec3 &rotation, float phaseShift)
	add a typed light point to this node.
virtual void	setLightPointManager (DtOsgLightPointManager *lightPointManager)
	keep a local copy of the light point manager pointer. Also needed since the Light Point Node does not have a reference to the DE.
virtual DtOsgLightPointManager *	findLightPointManager ()
	get the light point manager that this light point node is using.
virtual void	setLightPointsEnabled (bool enabled)
	Turn all the light points for this node on or off.
virtual bool	lightPointsEnabled ()
	Are all the light points for this node on or off.
virtual void	setGroupId (int id)
	Set the nodes group id. This overrides the light points individual group id unless it is set to 0.
virtual int	groupId ()
	get the nodes group id.
void	freeNodeIdIfNecessary (unsigned int maxNodeIds)
	Free up some node Id's if there are more than maxNodeIds allocated.
virtual osg::BoundingSphere	computeBound () const
	Compute the bounds for this node based on all the light points it contains.
virtual void	transformLightPointPositions (osg::Matrix &adjustmentMatrix)
	Apply a matrix to the light point positions used by the optimizer to remove the matrix transforms above the light points.

Protected Types
typedef std::vector < LightPointInfo >	LightPointIntList

Protected Member Functions
virtual	~DtLightPointNode ()
	DTOR.

Protected Attributes
osg::BoundingBox	myMutableBoundingBox
LightPointIntList	myLightPointTypeList
DtOsgLightPointManager *	myLightPointManager
osg::ref_ptr < DtLightPointDrawable >	myLightPointDrawable
std::vector< int >	myNodeIds
const osg::Camera *	myLastCamera
int	myFrameNum
int	myCurrentInstance
int	myAddedInstances
bool	myLightPointsEnabled
int	myGroupId

Static Protected Attributes
static int	theFrameNum
static const osg::Camera *	theLastCamera

Detailed Description

Derived from osg::Node and is a replacement for the osgSim::LightPointNode represents a group of light points that share a common origin location.

In addition to their origin the light point node can group them for things like airport or runway groupings. traversal of this node by the cull visitor passes the view matrix to the light point manager to be placed in an SSBO. Instance manager uses updateDrawable to do the same thing that traversal does for the non instanced case.

Member Typedef Documentation

typedef std::vector< LightPointInfo > makVrv::DtLightPointNode::LightPointIntList

protected

Constructor & Destructor Documentation

makVrv::DtLightPointNode::DtLightPointNode ( )

Default contructor.

makVrv::DtLightPointNode::DtLightPointNode	(	const DtLightPointNode &	lpn,
		const osg::CopyOp &	copyop = `osg::CopyOp::SHALLOW_COPY`
	)

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual makVrv::DtLightPointNode::~DtLightPointNode ( )

protectedvirtual

DTOR.

Member Function Documentation

makVrv::DtLightPointNode::META_Node	(	vrvOsg	,
		DtLightPointNode
	)

virtual void makVrv::DtLightPointNode::traverse ( osg::NodeVisitor & nv )

virtual

Traverse function which if called by the cull visitor then it sets up the Light Points to be drawn.

virtual void makVrv::DtLightPointNode::updateDrawable	(	const osg::Camera *	camera,
		int	frameNum,
		double	simTime,
		osg::Matrixf &	modelViewMatrix,
		osgUtil::CullVisitor *	cv,
		int	groupId,
		bool	shouldCull,
		float	maxVisibleDistance,
		float	posScale,
		float	radiusScale,
		bool	isInstancedReflection = `false`
	)

virtual

Makes sure the drawable has enough instances and light points for this node and passes model view matrix to the Light Point Manager posScale is used to scale the position of the light point when model scaling is being used with instanced models radiusScale is used to scale the radius of the light point when model scaling is being used with any model.

virtual void makVrv::DtLightPointNode::addTypedLightPoint	(	const osg::Vec3d &	pos,
		int	type,
		std::string	id,
		const osg::Vec3 &	rotation,
		float	phaseShift
	)

virtual

add a typed light point to this node.

This currently does not work correctly if this node has already been drawn once. position and rotation are in light point node local space. So the light point node's transform is applied to to the light points before they are drawn. The model view matrix for the light point node does this and is passed down to the shader in the updateDrawable function.

virtual void makVrv::DtLightPointNode::setLightPointManager ( DtOsgLightPointManager * lightPointManager )

virtual

keep a local copy of the light point manager pointer. Also needed since the Light Point Node does not have a reference to the DE.

virtual DtOsgLightPointManager* makVrv::DtLightPointNode::findLightPointManager ( )

virtual

get the light point manager that this light point node is using.

virtual void makVrv::DtLightPointNode::setLightPointsEnabled ( bool enabled )

virtual

Turn all the light points for this node on or off.

virtual bool makVrv::DtLightPointNode::lightPointsEnabled ( )

virtual

Are all the light points for this node on or off.

virtual void makVrv::DtLightPointNode::setGroupId ( int id )

virtual

Set the nodes group id. This overrides the light points individual group id unless it is set to 0.

virtual int makVrv::DtLightPointNode::groupId ( )

virtual

get the nodes group id.

void makVrv::DtLightPointNode::freeNodeIdIfNecessary ( unsigned int maxNodeIds )

Free up some node Id's if there are more than maxNodeIds allocated.

This is used to free up the instanced model light points if a instance is free'd. The reason for using the max id instead of always removing a node id every time and instance is free'd is because the light point may have never been drawn so it may not need to be removed.

virtual osg::BoundingSphere makVrv::DtLightPointNode::computeBound ( ) const

virtual

Compute the bounds for this node based on all the light points it contains.

virtual void makVrv::DtLightPointNode::transformLightPointPositions ( osg::Matrix & adjustmentMatrix )

virtual

Apply a matrix to the light point positions used by the optimizer to remove the matrix transforms above the light points.

Member Data Documentation

osg::BoundingBox makVrv::DtLightPointNode::myMutableBoundingBox

mutableprotected

LightPointIntList makVrv::DtLightPointNode::myLightPointTypeList

protected

DtOsgLightPointManager* makVrv::DtLightPointNode::myLightPointManager

protected

osg::ref_ptr<DtLightPointDrawable> makVrv::DtLightPointNode::myLightPointDrawable

protected

std::vector<int> makVrv::DtLightPointNode::myNodeIds

protected

const osg::Camera* makVrv::DtLightPointNode::myLastCamera

protected

int makVrv::DtLightPointNode::myFrameNum

protected

int makVrv::DtLightPointNode::myCurrentInstance

protected

int makVrv::DtLightPointNode::myAddedInstances

protected

bool makVrv::DtLightPointNode::myLightPointsEnabled

protected

int makVrv::DtLightPointNode::myGroupId

protected

int makVrv::DtLightPointNode::theFrameNum

staticprotected

const osg::Camera* makVrv::DtLightPointNode::theLastCamera

staticprotected

The documentation for this class was generated from the following file:

/exports/nfedora7-1/nightly/docs/vrforcesDevelopment.tot/include/vrvOsg/DtLightPointNode.h

Classes

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Static Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation